JP2006273131A - Fuel tank equipped with breakwater material, fuel tank breakwater material, and manufacturing method for them - Google Patents

Fuel tank equipped with breakwater material, fuel tank breakwater material, and manufacturing method for them Download PDF

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JP2006273131A
JP2006273131A JP2005095682A JP2005095682A JP2006273131A JP 2006273131 A JP2006273131 A JP 2006273131A JP 2005095682 A JP2005095682 A JP 2005095682A JP 2005095682 A JP2005095682 A JP 2005095682A JP 2006273131 A JP2006273131 A JP 2006273131A
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island
wave
dimensional network
fuel tank
network structure
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Nobuyuki Takaoka
伸行 高岡
Yasuhiro Kondo
泰弘 近藤
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SHIIENJI KK
C Eng Co Ltd
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SHIIENJI KK
C Eng Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel tank constituted capable of being stably mounted a breakwater material even if with the complicated different shape in a short time, improving mounting strength, improving durability, and having high breakwater and silencing effects. <P>SOLUTION: The breakwater material 6 is constituted by a three-dimensional netlike structural body wherein a plurality of continuous filaments of thermoplastic resin is three-dimensionally and randomly entwined each other and partially welded. The breakwater material 6 is composed of an island structure 8 equipped with a through hole 7 penetrating in a vertical direction; a platy element 9 set to have thickness thinner than the island structure 8, integrally connected to a peripheral edge so as to surround a lower side of the island structure 8, and projecting out in a lateral direction; and a first fastener fixed on a wall surface so as to internally provided on a container 4 and project to the inside. The first fastener 10 and a second fastener 11 are fastened to clip and fix the island structure 8. A continuous groove 12 is formed on the platy element 9 so as to partition the island structure 8. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、燃料タンク及び燃料タンク消波材に関し、特に、容器内部に消波材として立体網状構造体を内設した燃料タンク及び立体網状構造体からなる消波材に関する。   The present invention relates to a fuel tank and a fuel tank wave-dissipating material, and more particularly to a fuel tank having a three-dimensional network structure as a wave-dissipating material inside a container and a wave-dissipating material composed of the three-dimensional network structure.

従来の燃料タンク、例えば車の燃料タンク内においては、車を運転する際に発生する衝撃や振動によって、燃料タンク内部のガソリンに波が発生し、波が燃料タンクの内壁面に当たることで「チャポン、チャポン」という異音を発していた。これを防ぐために燃料タンク内部にセパレータという板を設けて、消波、消音を行っていたが、他にも立体網状構造体を燃料タンク内に設けることで消波、消音を行う発明がなされている(実開平3−102324号、特開平5−139169参照)。
実開平3−102324号 補助金具の消波板取り付け部に、桟部を残してその両側から裏部にかけて貫通する一対の取り付け凹部を複数備え、補助金具の消波板取り付け部に消波板の縁部を加熱圧接させることにより、溶融した樹脂を補助金具の一対の取り付け凹部からその中央部の桟部の裏側に回りこませて固定するため、補助金具の消波板への取り付けが確実に行われる。 特開平5−139169 繊維状にした樹脂材料を互いに絡み合わせ積み重ねるようにするとともに、前記樹脂材料を異形断面に形成することによって、燃料タンク内で乱流が十分に発生して流体の流動エネルギーが十分吸収される。したがって、液音の発生を充分押さえることができる。 特開2004−98939 タンクの内部天井面の略全面に合成樹脂製で立体網状体を貼り付け、消波効果を売る発明である。 特開2004−322996 ガソリンタンクの天井面に取り付け具で立体網状構造体からなる波消材を取り付ける発明である。
In a conventional fuel tank, for example, a fuel tank of a car, a wave is generated in gasoline inside the fuel tank due to an impact or vibration generated when the car is driven, and the wave hits the inner wall surface of the fuel tank. , "Chapon" was sounding. In order to prevent this, a plate called a separator is provided inside the fuel tank to muffle and mute, but other inventions have been made to muffle and mute by providing a three-dimensional network structure inside the fuel tank. (See Japanese Utility Model Laid-Open No. 3-102324, Japanese Patent Laid-Open No. 5-139169).
Japanese Utility Model Laid-Open No. 3-102324 Provided with a plurality of a pair of mounting recesses penetrating from the both sides to the back of the auxiliary metal fittings in the auxiliary metal fittings. By heat-welding the edges, the melted resin wraps around from the pair of mounting recesses on the auxiliary metal fittings to the back of the crosspiece at the center so that the auxiliary metal fittings are securely attached to the wave-dissipating plate. Done. Patent Document 1: JP-A-5-139169 Fibrous resin materials are entangled and stacked together, and the resin material is formed in an irregular cross section, so that sufficient turbulence is generated in the fuel tank and the fluid flow energy is increased. It is absorbed enough. Therefore, generation of liquid sound can be sufficiently suppressed. JP, 2004-98939, A Three-dimensional network made of synthetic resin is attached to substantially the entire inner ceiling surface of a tank to sell a wave-dissipating effect. JP, 2004-322996, A It is an invention which attaches a wave extinguishing material which consists of a solid network structure to a ceiling surface of a gasoline tank with a fixture.

しかしながら、熱可塑性樹脂の繊維の集合体である立体網状構造体からなる消波部材を内設できるのは、単純な形をした燃料タンクに限られ、形状が複雑な異形自動車燃料タンクでは配置が困難になるなど、安定した消波、消音効果を得ることができなかった。
また、近年では、樹脂のブロー成形が進展し、燃料注入口及び燃料排出口の狭い燃料タンクにおいては立体網状構造体を内設することができない状態であった。そのため、ブロー成形にて成形される燃料タンクには立体網状構造体を使用することができなかった。また射出成形による燃料タンクでも形状複雑化等に伴う取り付け性等が課題である。例えば、特許文献3では接着によるので、瞬間接着によるとしても、接着作業に時間を要したり、接着にバラツキガ生じるおそれがある。特許文献4にしても立体網状構造体の取付時間を要する課題が残り、さらに振動による取り付け部分の破損等が生じるおそれがあり、取り付け強度が課題である。
そこで、本発明は、立体網状構造体を内設し、複雑な異形燃料タンクにも短時間に安定して消波材を取り付けることが可能で、取付強度を高め、耐久性を向上させ、消波、消音効果の高い燃料タンクを提供することを目的とする。
However, the wave-dissipating member made of a three-dimensional network structure, which is an aggregate of thermoplastic resin fibers, can be installed only in a simple fuel tank. It was difficult to obtain a stable muffing and silencing effect.
In recent years, the blow molding of resin has progressed, and a three-dimensional network structure cannot be provided in a fuel tank with a narrow fuel inlet and fuel outlet. Therefore, a three-dimensional network structure cannot be used for a fuel tank formed by blow molding. In addition, even in a fuel tank by injection molding, there is a problem of attachment properties accompanying a complicated shape. For example, since it is based on adhesion in Patent Document 3, there is a risk that even if it is based on instantaneous bonding, it takes time for the bonding operation or variation may occur in the bonding. Even in Patent Document 4, there remains a problem that requires a mounting time of the three-dimensional network structure, and there is a possibility that the mounting portion is damaged due to vibration, and the mounting strength is a problem.
In view of this, the present invention has a three-dimensional network structure, and it is possible to stably attach a wave-dissipating material to a complex deformed fuel tank in a short time, increasing the attachment strength, improving the durability, An object of the present invention is to provide a fuel tank with a high wave and sound deadening effect.

上記諸課題に鑑み、請求項1記載の燃料タンクは、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、を備え、前記島状組織が消波材となることを特徴とする。   In view of the above-described problems, the fuel tank according to claim 1 is a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are randomly entangled three-dimensionally and partially welded, and penetrates in the vertical direction. And a plate-like body that is set to have a thickness smaller than that of the island-like structure and is integrally connected to the periphery of the island-like structure so as to surround the lower part of the island-like structure and extends laterally. The island structure is a wave-dissipating material.

請求項2に記載の燃料タンクは、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、燃料燃料注入口及び燃料排出口を備える金属製又はプラスチック製の容器に内設し内側に突出するように壁面に固定される第1ファスナと、から構成され、前記第1ファスナと第2ファスナとが締結することにより前記島状組織を挟んで固定するように構成し、前記島状組織が消波材となることを特徴とする。   The fuel tank according to claim 2 is formed of a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are randomly entangled three-dimensionally and partially welded, and has a through-hole penetrating in the vertical direction. An island-like structure, a plate-like body having a thickness smaller than that of the island-like structure, integrally connected to the periphery of the island-like structure so as to surround the lower part of the island-like structure, and extending laterally; a fuel fuel inlet and a fuel discharge A first fastener that is installed in a metal or plastic container having an outlet and is fixed to a wall surface so as to protrude inward, and the island is formed by fastening the first fastener and the second fastener. The island-shaped structure serves as a wave-dissipating material.

請求項3に記載の燃料タンクは、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、燃料燃料注入口及び燃料排出口を備える金属製又はプラスチック製の容器に内設し内側に突出するように壁面に固定される支柱と、該支柱の先端部に形成される弾性拘束片と、を備えるファスナーと、から構成され、前記ファスナーが前記貫通孔の下方から貫通した後に前記弾性拘束片が拡大し前記島状組織に係止するように構成し、前記島状組織が消波材となることを特徴とする。   The fuel tank according to claim 3 is formed of a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are randomly entangled three-dimensionally and partially welded, and has a through-hole penetrating in the vertical direction. An island-like structure, a plate-like body having a thickness smaller than that of the island-like structure, integrally connected to the periphery of the island-like structure so as to surround the lower part of the island-like structure, and extending laterally; a fuel fuel inlet and a fuel discharge It is composed of a post provided inside a metal or plastic container provided with an outlet and fixed to the wall so as to protrude inward, and a fastener provided with an elastic restraint piece formed at the tip of the post. The elastic restraint piece expands after the fastener penetrates from below the through hole and is locked to the island structure, and the island structure serves as a wave-dissipating material.

請求項4に記載の燃料タンク消波材の製造方法は、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体を、複数の窪みと、前記窪みから突出する縦穴形成用突出部と、前記窪みの周囲に横面とを備えるプレス型で熱プレスすることにより、縦穴を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体が圧縮又は溶融固化した板状体を備える消波材を形成し、前記島状組織の縦穴の底面板部を除去し、前記板状体の周縁をトリミングする、ことを特徴とする。   The method for producing a fuel tank wave-absorbing material according to claim 4, wherein a three-dimensional network structure in which a plurality of continuous filaments of a thermoplastic resin are three-dimensionally randomly entangled and partially welded, The island-shaped structure having the vertical hole and the thickness less than the island-shaped structure are set by hot pressing with a press die having a vertical hole forming protrusion protruding from the depression and a lateral surface around the depression. Forming a wave-dissipating material comprising a plate-like body in which a three-dimensional network structure is compressed or melted and solidified around the lower part of the island-like structure, removing the bottom plate portion of the vertical hole of the island-like structure, The periphery is trimmed.

請求項5に記載の燃料タンクは、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着され、押出し方向に粗部と密部とが交互に形成された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、を備え、
前記島状組織が消波材となることを特徴とする。
The fuel tank according to claim 5 is a three-dimensional structure in which a plurality of continuous filaments of thermoplastic resin are entangled at random three-dimensionally and partially welded, and rough portions and dense portions are alternately formed in the extrusion direction. An island-like structure comprising a net-like structure and having through-holes penetrating in the longitudinal direction, and a thickness smaller than that of the island-like structure, and integrally connected to the periphery of the island-like structure so as to surround the lower side of the island-like structure. A plate-like body extending to
The island structure is a wave-dissipating material.

請求項6に記載の燃料タンク消波材の製造方法は、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着され、押出し方向に疎部と密部とを交互に形成した立体網状構造体を、複数の窪みと、前記窪みから突出する縦穴形成用突出部と、前記窪みの周囲に横面とを備えるプレス型で熱プレスすることにより、縦穴を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体が圧縮又は溶融固化した板状体を備える消波材を形成し、前記島状組織の縦穴の底面板部を除去し、
前記板状体の周縁をトリミングする、ことを特徴とする。
In the method for manufacturing a fuel tank wave absorber according to claim 6, a plurality of continuous filaments of thermoplastic resin are tangled in three dimensions at random and partially welded, and a sparse part and a dense part are formed in the extrusion direction. Island having vertical holes by hot pressing a three-dimensional network structure formed alternately with a press die having a plurality of recesses, vertical hole forming protrusions protruding from the recesses, and a lateral surface around the recesses. Forming a wave-dissipating material comprising a sheet-like structure and a plate-like body in which the three-dimensional network structure is compressed or melted and solidified around the lower part of the island-like structure, Remove the bottom plate of the vertical hole,
The periphery of the plate-like body is trimmed.

請求項7記載の燃料タンク消波材の製造方法は、前記熱プレス後の波消材の裏面に前記立体網状構造体と同じ材質又は異なる材質の板材を貼り合わせる工程を、前記トリミングする工程よりも前の工程として付加することが好ましい。   The manufacturing method of the fuel tank wave-dissipating material according to claim 7 includes the step of trimming the step of bonding a plate material made of the same material as or a material different from that of the three-dimensional network structure to the back surface of the wave-dissipating material after the hot pressing. Is preferably added as a previous step.

請求項8の燃料タンク消波材の製造方法は、熱可塑性樹脂の複数の連続線条を口金の孔から自重で降下させる際に該連続線条の雰囲気温度を周囲の雰囲気温度よりも高い温度に加熱し、該連続線条を立体的にランダムに絡まりあわせて部分的に溶着させることにより立体網状構造体を形成し、前記立体網状構造体を、複数の窪みと、前記窪みの周囲に形成した横面と、該横面に形成される線状の連続突起とを備えるプレス型で熱プレスすることにより、島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体が圧縮又は溶融固化した板状体を備える消波材を形成し、前記板状体の周縁をトリミングする、ことを特徴とする。これにより、連続線条の相互の融着が良好になり、強度も高くなる。連続線条の融点よりも高い温度が好ましい。例えば、50℃〜500℃の温度範囲が好ましい。従来のものでは、PE,PETの材質の連続線条は口金から出ると、すぐに連続線条の表面が冷却されて、膜ができ、連続線条の相互の融着が悪くなるし、連続線条が自然降下しにくくなるからである。   The method for producing a fuel tank wave-absorbing material according to claim 8 is such that when the plurality of continuous filaments of the thermoplastic resin are lowered by their own weight from the holes of the die, the ambient temperature of the continuous filaments is higher than the ambient ambient temperature. To form a three-dimensional network structure by tangling the continuous filaments in a three-dimensional random manner and partially welding them, and forming the three-dimensional network structure around a plurality of depressions and the depressions The island-shaped structure and the island-shaped structure are set to have a thickness smaller than that of the island-shaped structure by hot pressing with a press die having a lateral surface and a linear continuous protrusion formed on the lateral surface. A wave-dissipating material having a plate-like body in which a three-dimensional network structure is compressed or melted and solidified is formed around the lower part, and the periphery of the plate-like body is trimmed. Thereby, mutual fusion | bonding of a continuous filament becomes favorable and intensity | strength also becomes high. A temperature higher than the melting point of the continuous filament is preferred. For example, a temperature range of 50 ° C to 500 ° C is preferable. In the conventional type, when the continuous filament made of PE or PET material comes out of the die, the surface of the continuous filament is immediately cooled to form a film, and the mutual fusion of the continuous filaments deteriorates. This is because the filaments are less likely to fall naturally.

請求項9の燃料タンクは、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備えるとともに上面に凹部及び/又は側面に凹部を形成した島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、を備え、前記島状組織が消波材となることを特徴とする。   The fuel tank according to claim 9 is composed of a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are three-dimensionally randomly entangled and partially welded, and has a through-hole penetrating in the vertical direction and an upper surface. And a plate which is formed with a thickness smaller than that of the island-like structure and is integrally connected to the periphery of the island-like structure so as to surround the lower side of the island-like structure and extends in the lateral direction. And the island structure is a wave-dissipating material.

請求項10の燃料タンク消波材の製造方法は、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体を、上面に凸部及び/又は側面に凸部を形成した複数の窪みと、前記窪みから突出する縦穴形成用突出部と、前記窪みの周囲に横面とを備えるプレス型で、熱プレスすることにより、縦穴を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体が圧縮又は溶融固化した板状体を備える消波材を形成し、前記島状組織の縦穴の底面板部を除去し、前記板状体の周縁をトリミングする、ことを特徴とする。   The method for producing a fuel tank wave absorbing material according to claim 10 is characterized in that a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are three-dimensionally randomly entangled and partially welded, a convex portion on the upper surface and / or Or a plurality of dents with convex portions formed on the side surfaces, vertical hole forming projections protruding from the dents, and a press die having a lateral surface around the dents, and islands with vertical holes by hot pressing. Forming a wave-dissipating material having a structure and a plate-like body in which a three-dimensional network structure is compressed or melted and solidified around a lower portion of the island-like structure, and having a vertical hole in the island-like structure. The bottom plate portion is removed, and the periphery of the plate-like body is trimmed.

請求項11の燃料タンクは、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、を備え、前記島状組織が消波材となり、該消波材の裏面と、燃料燃料注入口及び燃料排出口を備える金属製又はプラスチック製の容器の内面とをマジックテープ(登録商標)で着脱自在に構成することを特徴とする。   The fuel tank according to claim 11 is an island-like structure comprising a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are three-dimensionally randomly entangled and partially welded, and has through holes penetrating in the vertical direction. And a plate-like body that is set to have a thickness smaller than that of the island-like tissue and that is integrally connected to the periphery of the island-like tissue and extends laterally so as to surround the lower part of the island-like tissue. A wave material is formed, and the back surface of the wave-dissipating material and the inner surface of a metal or plastic container having a fuel fuel inlet and a fuel outlet are detachably configured with Velcro (registered trademark). .

なお、上記各請求項において、島状組織の数は単数でもよいし、複数でもよい。
立体網状構造体の島状組織又は板状体は、機械プレス、熱プレス、加熱装置、超音波等によって形成することができる。立体網状構造体は熱によって形成させることが可能である。例えば、立体網状構造体を熱プレスによって形成することが好ましい。或いは、プレスの金型にて押圧し、そのまま熱湯(約100度)を注いで中に浸して立体網状構造体を熱し、その後冷水を注いで冷やすことによって、立体網状構造体を金型の形に形成させることが好ましい。また、例えば、超音波発生装置(例えば、超音波プラスチックウエルダー)により、超音波振動(例えば、15〜20kHz等)を与えると、立体網状構造体との接合面に摩擦熱が発生し、瞬時に熱可塑性樹脂が溶融軟化し、ローラ等で押圧力を加えて圧縮し厚みを減少させることで形成される例、高周波加熱等を用いる例、熱プレスを用いる例、プレスを用いる例等が挙げられる。例えば、ローラと、超音波ホーン、超音波振動子等を備えた超音波発生装置を利用することが好ましい。この場合、手動又は移送装置で立体網状構造体を超音波発生装置のテーブル上で移動させることが好ましい。
In the above claims, the number of island-like structures may be singular or plural.
The island-like structure or plate-like body of the three-dimensional network structure can be formed by a mechanical press, a hot press, a heating device, an ultrasonic wave, or the like. The three-dimensional network structure can be formed by heat. For example, it is preferable to form a three-dimensional network structure by hot pressing. Alternatively, press the mold with a press and pour hot water (about 100 degrees) as it is to heat the solid network structure and then cool it by pouring cold water into the mold shape. It is preferable to form it. For example, when ultrasonic vibration (for example, 15 to 20 kHz) is applied by an ultrasonic generator (for example, an ultrasonic plastic welder), frictional heat is generated on the joint surface with the three-dimensional network structure, and instantaneously. Examples include a case where a thermoplastic resin is melted and softened, and is formed by applying a pressing force with a roller and compressing to reduce the thickness, an example using high-frequency heating, an example using a hot press, an example using a press, etc. . For example, it is preferable to use an ultrasonic generator including a roller, an ultrasonic horn, an ultrasonic vibrator, and the like. In this case, it is preferable to move the three-dimensional network structure on the table of the ultrasonic generator manually or by a transfer device.

立体網状構造体は少なくとも法面側端部が予め内側よりも圧縮されて密度が高く形成されてもよい。板状体は熱により立体網状構造体が軟化し押圧力により島状組織の厚みより厚みが縮小した状態で固化される。特に立体網状構造体が圧縮又は溶融固化された状態が好ましい。板状体は熱による処理後でも連続線条の組織が、視覚で認識できるものであり、網状組織が残存していてもよい。板状体は前記厚肉網状構造部よりも空隙率が減少し、ランダムに絡み合う度合いが高くなっていてもよい。或いは網状組織が残存していなく、溶融固化状態でもよい。   The three-dimensional network structure may be formed with a higher density by compressing at least the slope side end portion in advance than the inner side. The plate-like body is solidified in a state where the three-dimensional network structure is softened by heat and the thickness is reduced by the pressing force from the thickness of the island-like structure. In particular, a state in which the three-dimensional network structure is compressed or melted is preferable. In the plate-like body, the structure of continuous filaments can be visually recognized even after treatment with heat, and the network structure may remain. The plate-like body may have a lower porosity and a higher degree of random entanglement than the thick-walled network structure. Alternatively, the network structure may not remain and may be in a melt-solidified state.

また、積層された樹脂製燃料タンクを粉砕したリサイクル原料を原料樹脂に対して数十%(80%以下の範囲が好ましい)、混合させることも好適である。樹脂製ガソリンタンクは硬く樹脂流動性を示すMI値が低いので、樹脂製ガソリンタンクの粉砕したものに、バージンの樹脂を混合し、MI値を10〜30、好ましくは10〜15に調整することが好ましい。立体網状構造体は燃料タンクに固定してもよいし、燃料タンクに拘束されないようにしてもよい。立体網状構造体は燃料タンクに固定する場合、その固定態様は、金属、樹脂のビス、ボルト、ピン等による機械的な取り付け、テープ、接着剤等による取り付け、融着溶着、溶融品の同時吹き付け等による取り付けが挙げられる。取り付け方法を選ばないため、相手の材質、場所を選ばない利点がある。   It is also preferable to mix a recycled raw material obtained by pulverizing laminated resin fuel tanks with several tens of percent (preferably in a range of 80% or less) of the raw material resin. Since the resin gasoline tank is hard and has a low MI value indicating resin fluidity, the resin gasoline tank is pulverized and mixed with virgin resin to adjust the MI value to 10-30, preferably 10-15. Is preferred. The three-dimensional network structure may be fixed to the fuel tank, or may not be restrained by the fuel tank. When fixing a three-dimensional network structure to a fuel tank, the fixing mode is mechanical attachment with metal, resin screws, bolts, pins, etc., attachment with tape, adhesive, etc., fusion welding, simultaneous blowing of molten products The attachment by etc. is mentioned. Since the attachment method is not chosen, there is an advantage that the material and location of the other party are not chosen.

立体網状構造体の燃料タンクに対する取り付け状態は、燃料タンクの上下左右内壁面に沿って取り付ける場合、上下左右に渡らせて取り付ける場合、内壁面に支柱を取り付けてこれに掛け止めする場合等が挙げられる。   The installation state of the three-dimensional network structure with respect to the fuel tank includes the case where the fuel tank is attached along the upper, lower, left and right inner wall surfaces, the case where the fuel tank is attached across the upper, lower, left and right sides, and the case where a support is attached to the inner wall surface. It is done.

立体網状構造体を消波材として用いた場合にガソリン等に漬しても溶出したり膨潤することがない材質を選択することが好ましい。材質は、ナイロン、ポリエチレン(PE)、ポリエチレンテレフタレート(PE)、ポリプロピレン(PP)等が好適である。   When a three-dimensional network structure is used as a wave-absorbing material, it is preferable to select a material that does not elute or swell even when immersed in gasoline or the like. The material is preferably nylon, polyethylene (PE), polyethylene terephthalate (PE), polypropylene (PP) or the like.

立体網状構造体の嵩密度は、0.02g/cm3〜0.9g/cm3、0.02g/cm3〜0.5g/cm3、特に0.05〜0.2g/cm3が好ましい。立体網状構造体の空隙率は、50%〜98%、特に80%〜95%が好ましい。線径(直径)は、0.05〜2.0mm、0.1〜2.0mm、特に0.3〜1.5mmが好ましい。 The bulk density of the three-dimensional net-like structure, 0.02g / cm 3 ~0.9g / cm 3, 0.02g / cm 3 ~0.5g / cm 3, particularly preferably 0.05 to 0.2 g / cm 3 . The porosity of the three-dimensional network structure is preferably 50% to 98%, particularly preferably 80% to 95%. The wire diameter (diameter) is preferably 0.05 to 2.0 mm, 0.1 to 2.0 mm, and particularly preferably 0.3 to 1.5 mm.

立体網状構造体の消波効果、消音効果は容器の材質に影響されず、金属製の容器においても、プラスチック製の容器においても同様の効果を発揮する。官能試験において効果が認められている。   The wave-dissipating effect and sound-deadening effect of the three-dimensional network structure are not affected by the material of the container, and the same effect is exhibited in both a metal container and a plastic container. Effective in sensory tests.

また、燃料タンクの容器は、プラスチック又は金属(例えば鉄)が好ましい。プラスチック製の場合、一体成形(ブロー成形等)でもよいし、射出等によって成形される分割体を融着させて一体にした容器でも良い。一体成形の場合、燃料排出口から内部に挿入し見当で消波し材を取り付けるが、分割体の場合には、取り付け作業の確実性が高まる。   The container of the fuel tank is preferably plastic or metal (for example, iron). In the case of plastic, integral molding (blow molding or the like) may be used, or a container in which divided bodies molded by injection or the like are fused and integrated may be used. In the case of integral molding, the material is inserted from the fuel discharge port and the wave-dissipating material is attached in register.

金属製容器の燃料タンクの場合、燃料タンクの内部に消波材を取り付けた後に、塗装工程で150℃程度の高温にさらされるので、消波材の材質等に制約がある場合もある。例えば、ポリエチレン等をナイロン等に変更する必要がある。プラスチック製の燃料タンクの場合、燃料タンクの内部に消波材を取り付けた後に、塗装工程がないので、材料に溶融温度条件の制約がない。   In the case of a metal container fuel tank, since the wave-dissipating material is attached to the inside of the fuel tank and then exposed to a high temperature of about 150 ° C. in the painting process, the material of the wave-dissipating material may be restricted. For example, it is necessary to change polyethylene or the like to nylon or the like. In the case of a plastic fuel tank, since there is no painting process after the wave-dissipating material is attached to the inside of the fuel tank, there is no restriction on the melting temperature condition of the material.

請求項1〜8の発明によれば、島状組織に貫通孔を設けているので、取付時間を短縮し、取付強度を高め、耐久性を向上させる効果を発揮する。   According to invention of Claims 1-8, since the through-hole is provided in the island-like structure | tissue, the effect which shortens attachment time, raises attachment strength, and improves durability is exhibited.

請求項3の発明によれば、島状組織の貫通孔が固定具の役目をするので、波消材に固定手段を設ける必要がなくなる効果がある。   According to invention of Claim 3, since the through-hole of an island-like structure | tissue plays the role of a fixing tool, there exists an effect which becomes unnecessary to provide a fixing means in a wave-dissipating material.

請求項4の発明によれば、波消材に穿孔することなく、貫通孔を形成できるので、強度を向上できる。   According to invention of Claim 4, since a through-hole can be formed without drilling in a wave-extinguishing material, intensity | strength can be improved.

請求項5、6の発明によれば、長い波消材を折り曲げることによって、深さや幅に制約のあるガソリンタンク内に挿入することができる。   According to invention of Claim 5, 6, it can insert in a gasoline tank with restrictions in depth and width by bending a long wave extinguishing material.

請求項7の発明によれば、取り付け部分、トリミング部分の強度を高める効果がある。   According to invention of Claim 7, there exists an effect which raises the intensity | strength of an attachment part and a trimming part.

請求項8の発明によれば、PE、PETの材質の連続線条のように連続線条の相互の融着が悪く、連続線条が自然降下しにくくなるものに対して、連続線条の相互の融着を良好とし、立体網状構造体の強度も高くなる。また、連続線条が伸びやすくなり、製品安定性が高まる。   According to the invention of claim 8, the continuous filaments have poor mutual fusion, such as continuous filaments of PE and PET materials, and the continuous filaments are less likely to fall naturally. The mutual fusion is good and the strength of the three-dimensional network structure is increased. In addition, the continuous filaments are easily elongated, and the product stability is increased.

請求項9、10によれば、凹部により波消効果を高める効果がある。   According to the ninth and tenth aspects, there is an effect of enhancing the wave-dissipating effect by the recess.

本発明の実施形態1の燃料タンク1について図1〜図3を参照して説明する。燃料タンク1は、燃料注入口2及び燃料排出口3を備える容器4と、燃料注入口2に脱着自在なキャップ5と、容器4に内設される立体網状構造体からなる消波材6とを備えたものである。燃料排出口3には燃料をエンジンに供給する燃料ポンプを取り付けて密閉する。
消波材6は、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔7を備える島状組織8と、島状組織8より厚みが少なく設定され、島状組織8の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体9と、容器4に内設し内側に突出するように壁面に固定される第1ファスナ10と、から構成されている。また、第1ファスナ10と第2ファスナ11とが締結することにより島状組織8を挟んで固定するように構成してある。板状体9には島状組織8を仕切るように連続溝12が複数(単数でもよい。)形成されている。島状組織8が燃料の波消を行う。これは容器4に消波材6を折り曲げて挿入するためである。図3(a)〜(c)に示す通り、ファスナの締結形態が例示され、適宜の形態を取り得る。島状組織8が燃料の波消を行う。実施形態1の燃料タンク1によれば、島状組織8に貫通孔7を設けているので、取付時間を短縮し、取付強度を高め、耐久性を向上させる効果を発揮する。
A fuel tank 1 according to a first embodiment of the present invention will be described with reference to FIGS. The fuel tank 1 includes a container 4 having a fuel inlet 2 and a fuel outlet 3, a cap 5 that is detachable from the fuel inlet 2, and a wave-dissipating material 6 that is a three-dimensional network structure provided in the container 4. It is equipped with. A fuel pump for supplying fuel to the engine is attached to the fuel discharge port 3 and sealed.
The wave-dissipating material 6 is made of a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are three-dimensionally randomly entangled and partially welded, and has an island-like structure including through holes 7 penetrating in the vertical direction. 8 and a plate-like body 9 which is set to be thinner than the island-like structure 8 and is integrally connected to the periphery of the island-like structure 8 so as to surround the lower side of the island-like structure 8 and extends in the lateral direction. It is comprised from the 1st fastener 10 fixed to a wall surface so that it may protrude. In addition, the first fastener 10 and the second fastener 11 are fastened so that the island-like structure 8 is sandwiched and fixed. A plurality of continuous grooves 12 (or a single groove) may be formed in the plate-like body 9 so as to partition the island-like structure 8. The island-like structure 8 performs the wave elimination of the fuel. This is because the wave-dissipating material 6 is bent and inserted into the container 4. As shown to Fig.3 (a)-(c), the fastening form of a fastener is illustrated and can take an appropriate | suitable form. The island-like structure 8 performs the wave elimination of the fuel. According to the fuel tank 1 of Embodiment 1, since the through-hole 7 is provided in the island-like structure 8, the effect of shortening the attachment time, increasing the attachment strength, and improving the durability is exhibited.

実施形態2の燃料タンク21を図4及び図5を参照して説明する。燃料タンク21は、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔27を備える島状組織28と、島状組織28より厚みが少なく設定され、島状組織28の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体29と、容器24に内設し内側に突出するように壁面に固定される支柱30と、支柱30の先端部に形成される弾性拘束片31と、を備えている。支柱30及び鏃状の拡開可能な翼を備える弾性拘束片31とが貫通孔27の下方から貫通したときに弾性拘束片31は縮小された後、弾性拘束片31が貫通孔27を通過すると、弾性力によって拡開し、島状組織28に係止するように構成してある。図4(a)〜(c)に示す通り、弾性拘束片31の形態が例示され、適宜の形態を取り得る。図4(a)は、島状組織28の上部に弾性拘束片31が係止するものである。図4(b)は、板状体29に弾性拘束片31が係止するものである。図4(c)は、島状組織28の中段部に弾性拘束片31が係止するものである。この中段部は貫通孔27の途中に設けられ、円環状に形成されたものであり、下段部の径が上段部の径よりも大きく設定されている。島状組織28が燃料の波消を行う。実施形態2の燃料タンク21によれば、実施形態1と同様の効果を奏するほか、島状組織28の貫通孔27が固定具の役目をするので、波消材26に固定手段を設ける必要がなくなる効果がある。   The fuel tank 21 of Embodiment 2 will be described with reference to FIGS. 4 and 5. The fuel tank 21 is made of a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are three-dimensionally randomly entangled and partially welded, and an island-like structure 28 having a through hole 27 penetrating in the vertical direction. And a plate-like body 29 which is set to have a thickness smaller than that of the island-like structure 28, and is integrally connected to the periphery of the island-like structure 28 so as to surround the lower part of the island-like structure 28 and extends in the lateral direction. The column 30 is fixed to the wall surface, and the elastic restraint piece 31 is formed at the tip of the column 30. When the elastic restraint piece 31 passes through the through-hole 27 after the elastic restraint piece 31 is reduced when the support post 30 and the elastic restraint piece 31 having the wing-like expandable wing penetrate from below the through-hole 27. It is configured to expand by elastic force and to be locked to the island-like tissue 28. As shown in FIGS. 4A to 4C, the form of the elastic restraint piece 31 is illustrated and can take an appropriate form. In FIG. 4A, the elastic restraint piece 31 is locked to the upper part of the island-like structure 28. FIG. In FIG. 4B, the elastic restraint piece 31 is engaged with the plate-like body 29. FIG. 4 (c) shows the elastic restraint piece 31 locked to the middle step of the island-like structure 28. The middle step portion is provided in the middle of the through hole 27 and is formed in an annular shape, and the diameter of the lower step portion is set larger than the diameter of the upper step portion. The island-like structure 28 performs fuel wave extinction. According to the fuel tank 21 of the second embodiment, in addition to the same effects as the first embodiment, the through hole 27 of the island-like structure 28 serves as a fixing tool, so that it is necessary to provide fixing means for the wave extinguishing material 26. It has the effect of disappearing.

実施形態3の燃料タンク41は、実施形態1と同様ではあるが、図6に示す通り、線条の連続溝42が十字状に形成されて、交差したものであり、容器の形状により柔軟に対応できる。また、島状組織38の上面に上下方向に凹部55、側面に凹部57を形成したものである。島状組織38が燃料の消波を行う。凹部57に代えて外方に突出する壁体を設けても良い。なお、部品番号は実施形態1の燃料タンク1の部品番号に40番を付加した番号として説明は援用する。実施形態3によれば、波消材を折り曲げることによって、深さや幅に制約のあるガソリンタンク内に挿入することができる。凹部55、57により波消効果を高める効果がある。   The fuel tank 41 of the third embodiment is the same as that of the first embodiment, but as shown in FIG. 6, the continuous grooves 42 of the filaments are formed in a cross shape and intersect, and are flexible depending on the shape of the container. Yes. Further, a concave portion 55 is formed on the upper surface of the island-like structure 38 in the vertical direction, and a concave portion 57 is formed on the side surface. The island-like structure 38 performs the wave quenching of the fuel. Instead of the recess 57, a wall body protruding outward may be provided. In addition, description is used as a part number adding the number 40 to the part number of the fuel tank 1 of Embodiment 1. According to Embodiment 3, it can insert in a gasoline tank with restrictions in depth and width by bending a wave-dissipating material. The recesses 55 and 57 have an effect of enhancing the wave-dissipating effect.

図6の点線で示すように、立体網状構造体601と同じ材質又は異なる材質の板材60を貼り合わせた変更形態もある。これにより、当該貼り合わせ工程の後工程であるトリミングを行うときの取り付け部分、トリミング部分の強度を高める。   As shown by a dotted line in FIG. 6, there is a modified form in which a plate material 60 made of the same material as or different from the three-dimensional network structure 601 is bonded. Thereby, the strength of the attachment portion and the trimming portion when performing trimming, which is a subsequent step of the bonding step, is increased.

なお、上記各実施形態において、島状組織の数は単数でもよいし、複数でもよい。立体網状構造体は少なくとも法面側端部が予め内側よりも圧縮されて密度が高く形成されてもよい。板状体9,29,49は熱により立体網状構造体が軟化し押圧力により島状組織8,28,48の厚みより厚みが縮小した状態で固化される。特に立体網状構造体が圧縮又は溶融固化された状態が好ましい。板状体9,29,49は熱による処理後でも連続線条の組織が、視覚で認識できる程度に網状組織が残存していてもよい。板状体9,29,49は島状組織8,28,48よりも空隙率が減少し、ランダムに絡み合う度合いが高くなっていてもよい。或いは網状組織が残存していなく、溶融固化状態でもよい。   In each of the above embodiments, the number of island-like structures may be singular or plural. The three-dimensional network structure may be formed with a higher density by compressing at least the slope side end portion in advance than the inner side. The plate-like bodies 9, 29, and 49 are solidified in a state where the three-dimensional network structure is softened by heat and the thickness is reduced by the pressing force compared to the thickness of the island-like structures 8, 28, and 48. In particular, a state in which the three-dimensional network structure is compressed or melted is preferable. In the plate-like bodies 9, 29, and 49, the network structure may remain so that the structure of the continuous filaments can be visually recognized even after the heat treatment. The plate-like bodies 9, 29, and 49 may have a lower porosity than the island-like structures 8, 28, and 48, and may have a higher degree of random entanglement. Alternatively, the network structure may not remain and may be in a melt-solidified state.

消波材6,26,46等を構成するための原材料になる具体例の立体網状構造体601は、図7(a)の通り、熱可塑性樹脂又は再生熱可塑性樹脂を原料又は主原料とし、複数本の線条(中実の線条が一般的であるが、管状の中空線条である場合もある)が、螺旋状に無秩序に絡まり合い部分的に熱接着した板状の立体網状構造体であることを特徴とした立体網状構造体である。図7(b)の通り、熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着され、押出し方向に密部708Aと粗部708Bととが交互に形成された立体網状構造体708からなるものでもよい。疎部708Bに侵入した燃料は、容器4の揺れにより、密部708Aに衝突することで、効果的に波消される。   A specific example of the three-dimensional network structure 601 serving as a raw material for constituting the wave-dissipating materials 6, 26, 46, etc., as shown in FIG. 7A, uses a thermoplastic resin or a regenerated thermoplastic resin as a raw material or a main raw material, A plate-like three-dimensional network structure in which a plurality of filaments (solid filaments are common, but sometimes tubular hollow filaments) are spirally disordered and partially heat-bonded It is a three-dimensional network structure characterized by being a body. As shown in FIG. 7 (b), a plurality of continuous filaments of the thermoplastic resin are entangled three-dimensionally randomly and partially welded, and dense portions 708A and coarse portions 708B are alternately formed in the extrusion direction. It may be composed of a three-dimensional network structure 708. The fuel that has entered the sparse part 708B collides with the dense part 708A due to the shaking of the container 4 and is effectively waved.

ここでは例えば、熱可塑性樹脂として、ポリエチレン、ポリプロピレンなどのポリオレフィン、ポリエチレンテレフタレートなどのポリエステル、ナイロン66などのポリアミド、ポリ塩化ビニル、ポリスチレン、上記樹脂をベースとし共重合したコポリマーやエラストマー、上記樹脂をブレンドしたもの等が挙げられる。酢酸ビニール樹脂、ゴムを混合したポリエチレン樹脂が好適である。また、原料を熱可逆性ウレタンとすれば、低反発で弾力性を保持できる。なお、再生熱可塑性樹脂の原料又は主原料としてPETボトルのフレーク状又はチップ状を使用することもできる。PETボトルをそのまま粉砕しそれを溶融させてフレーク形状にしたものである。リサイクル促進の時代にも適合している。これが再生品ではなく、純正品であると、乾燥結晶化、或いはごみ除去等、コスト的に1m2あたりの製造費が倍増する。廃棄処理コスト削減に威力を発揮できる。しかしながら、再生以外の熱可塑性樹脂等においても適用可能である。 Here, for example, as thermoplastic resins, polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, polyamides such as nylon 66, polyvinyl chloride, polystyrene, copolymers and elastomers based on the above resins, and blends of the above resins And the like. A polyethylene resin mixed with vinyl acetate resin and rubber is preferable. If the raw material is thermoreversible urethane, elasticity can be maintained with low repulsion. In addition, the flake shape or chip | tip shape of PET bottle can also be used as a raw material or main raw material of a reproduction | regeneration thermoplastic resin. A PET bottle is crushed as it is and melted to form a flake. It is also suitable for the era of recycling promotion. If this is not a recycled product but a genuine product, the production cost per 1 m 2 will be doubled in terms of cost, such as dry crystallization or dust removal. Can be used to reduce waste disposal costs. However, it can also be applied to thermoplastic resins other than recycled materials.

この具体例は概ね内部が均一な密度に成形されたものである。見掛密度は0.02〜0.9g/cm3(空隙率36〜98.4%に相当する)が好ましく、0.02〜0.2g/cm3が特に好ましい。立体網状構造体601は消波材の好適な大きさ、例えば幅5cm〜15cm、長さ47cm、厚さは5cm〜10cmが好ましく、長さ方向においては有端状であり、図示のものを適宜の長さに切断するが、それらのサイズ例に限定されるわけではない。 In this specific example, the inside is molded to a uniform density. The apparent density is preferably 0.02 to 0.9 g / cm 3 (corresponding to a porosity of 36 to 98.4%), particularly preferably 0.02 to 0.2 g / cm 3 . The three-dimensional network structure 601 preferably has a suitable size of the wave-dissipating material, for example, a width of 5 cm to 15 cm, a length of 47 cm, and a thickness of 5 cm to 10 cm, and is end-shaped in the length direction. However, it is not limited to these size examples.

(立体網状構造体製造装置)
次に、立体網状構造体製造装置610を説明する。
この立体網状構造体製造装置610は、図8の通り、押出成形機611、無端部材12,13を備えた一対の無端コンベア14,15(図25参照)、無端部材12,13を駆動する駆動モータ16、チェーン及び歯車から構成され無端部材612,613の移動速度を変速させる変速機617、一対の無端コンベア614,615を一部水没させる水槽618、制御装置619、その他計器類等から構成されている。
(3D network structure manufacturing equipment)
Next, the three-dimensional network structure manufacturing apparatus 610 will be described.
As shown in FIG. 8, the three-dimensional network structure manufacturing apparatus 610 is configured to drive an extruder 611, a pair of endless conveyors 14 and 15 (see FIG. 25) having endless members 12 and 13, and a drive that drives the endless members 12 and 13. It is composed of a motor 16, a chain and gears, a transmission 617 that changes the moving speed of the endless members 612 and 613, a water tank 618 that partially submerses the pair of endless conveyors 614 and 615, a control device 619, and other instruments. ing.

無端コンベア614は、図10の通り、上下に配置された、前記無端チェーン612aが巻き掛けられたスプロケット614aを有する駆動軸614bと、スプロケット614cを有する従動軸614dを備えている。また、無端コンベア615は無端コンベア614と同期して駆動され、上下に配置された、前記無端チェーン613aが巻き掛けられたスプロケット615aを備えた従動軸615bと、スプロケット615cを備えた従動軸615dとを備えている。   As shown in FIG. 10, the endless conveyor 614 includes a drive shaft 614b having a sprocket 614a around which the endless chain 612a is wound, and a driven shaft 614d having a sprocket 614c. The endless conveyor 615 is driven in synchronism with the endless conveyor 614, and is disposed vertically, a driven shaft 615b having a sprocket 615a around which the endless chain 613a is wound, and a driven shaft 615d having a sprocket 615c. It has.

図8の通り、押出成形機611は、コンテナ631、コンテナ631上部に設けた原料供給口632、ダイス633、ダイス633の下端部に脱着自在に固定可能な口金634等から構成されている。押出成形機611のダイス内部の温度範囲は100〜400℃、押出量は20〜200Kg/時間、等に設定可能である。ダイス633の圧力範囲は0.2〜25MPa、例えば75mmスクリューの吐出圧である。立体網状構造体の厚さが100mmを越えるとキヤポンプ等によりダイス圧力の均一化が必要なこともある。したがって、ダイス内全域から均等に線条を吐出させるためにギヤポンプ等によりダイス内の圧力を上げることが必要となる。このとき立体網状体の形状を形成するため、無端コンベア614,615の各面は自由に移動出来る構造とし、ダイス633の口金634の形状(孔Hの密度又は径)と無端コンベア614,615の搬送速度により所望の密度、強度をもった製品を製造することができ、製品の多様な要求を満足させることができる。また、例えば、口金634の形状、無端コンベア614,615等の形状を変更することで消波材に湾曲面を簡単に形成することができる。   As shown in FIG. 8, the extrusion molding machine 611 includes a container 631, a raw material supply port 632 provided in the upper part of the container 631, a die 633, a base 634 that can be detachably fixed to a lower end portion of the die 633, and the like. The temperature range inside the die of the extruder 611 can be set to 100 to 400 ° C., the extrusion amount can be set to 20 to 200 kg / hour, and the like. The pressure range of the die 633 is 0.2 to 25 MPa, for example, a discharge pressure of a 75 mm screw. When the thickness of the three-dimensional network structure exceeds 100 mm, it may be necessary to make the die pressure uniform by a pump or the like. Therefore, it is necessary to increase the pressure in the die by a gear pump or the like in order to discharge the filaments uniformly from the entire area inside the die. At this time, in order to form the shape of a three-dimensional network, each surface of the endless conveyors 614 and 615 can be freely moved, and the shape (density or diameter of the hole H) of the die 633 and the endless conveyors 614 and 615 A product having a desired density and strength can be manufactured according to the conveyance speed, and various requirements of the product can be satisfied. Further, for example, by changing the shape of the base 634, the shape of the endless conveyors 614, 615, etc., a curved surface can be easily formed on the wave-dissipating material.

さらに図9及び11の通り、口金634の下端と水面の間の連続線条の周囲の雰囲気を包むようにカバー650を設けている。このカバー650は上下方向に孔652,654を形成している。そしてカバー650の外面にプレートヒータ656を固定してある。なお、カバー650をプレートヒータ656で構成してもよい。   Further, as shown in FIGS. 9 and 11, a cover 650 is provided so as to wrap the atmosphere around the continuous filament between the lower end of the base 634 and the water surface. The cover 650 has holes 652 and 654 formed in the vertical direction. A plate heater 656 is fixed to the outer surface of the cover 650. Note that the cover 650 may be configured by a plate heater 656.

(立体網状構造体の製造方法)
この立体網状構造体601は次のように製造される。まず酢酸ビニール樹脂を加水分解防止のため加熱し乾燥させ、これに適宜仕上がりを良好にする薬剤、又は抗菌剤等を添加することもある。口金634からフラットに線条が降下すると、無端コンベア614,615の無端部材612,613の巻き込み作用により螺旋状に巻かれる。巻いたときに無端部材612,613の面に当たったところから、巻き込んでいく。巻き込まれた部分は密度が大きく、巻き込まれない部分は密度が小さい。
(Method for producing a three-dimensional network structure)
The three-dimensional network structure 601 is manufactured as follows. First, the vinyl acetate resin is heated and dried to prevent hydrolysis, and an agent for improving the finish, an antibacterial agent, or the like may be appropriately added thereto. When the filament is lowered flat from the base 634, it is wound spirally by the winding action of the endless members 612 and 613 of the endless conveyors 614 and 615. It winds in from the place which contacted the surface of endless member 612,613 when winding. The part that is caught is high in density, and the part that is not caught is low in density.

つぎに、図9の通り、溶融した熱可塑性樹脂を複数のダイス633より下方へ押出し、一対の無端コンベア614,615により水中において下方に搬送されるようになっている。また無端コンベア614,615の上方には一部水没した1対のシュータ620,621の間に自然降下させ、上記の降下速度より遅く引き取ることにより立体網状構造体601を製造する際に、押出された溶融樹脂の集合体の幅より1対のシュータ620,621の間隔が狭く、かつシュータ620,621が水没する前後に上記溶融樹脂の集合体の両面あるいは片面がシュータ620,621に接触するようにした。一対のシュータ620,621は表面上を水が上方から下方に流れており、また、透水性シート例えば布で覆われており、透水性シートの上を水が流下することで、均一なループが形成できるようになっている。シュータ620,621は左右対称の傾斜面を備え、その幅が下方に向かうに従って徐々に狭くなっている。   Next, as shown in FIG. 9, the molten thermoplastic resin is extruded downward from a plurality of dies 633, and is conveyed downward in water by a pair of endless conveyors 614 and 615. Also, when the three-dimensional network structure 601 is produced by naturally descending between a pair of partially submerged shooters 620 and 621 above the endless conveyors 614 and 615 and taking it slower than the above-mentioned descending speed, it is extruded. The distance between the pair of shooters 620 and 621 is narrower than the width of the molten resin aggregate, and both or one side of the molten resin aggregate contacts the shooters 620 and 621 before and after the shooters 620 and 621 are submerged. I made it. The pair of shooters 620 and 621 has water flowing from the upper side to the lower side on the surface, and is covered with a water permeable sheet, for example, a cloth. It can be formed. The shooters 620 and 621 have symmetrical left and right inclined surfaces, and the width gradually decreases as they go downward.

このとき、前記したようにカバー650で雰囲気を包囲しているので、連続線条の雰囲気温度を周囲の雰囲気温度よりも高い温度に加熱する。これにより、連続線条の相互の融着が良好になり、強度も高くなる。連続線条の融点よりも高い温度が好ましい。例えば、50℃〜500℃の温度範囲が好ましい。従来のものでは、ポリエチレン(PE),ポリエチレンてレフタレート(PET)、ナイロンの材質の連続線条は口金634から出ると、すぐに連続線条の表面が冷却されて、連続線条の表面に膜ができ、連続線条の相互の融着が悪くなるし、連続線条が自然降下しにくくなる。PE、PETの材質の連続線条であっても、連続線条の相互の融着を良好とし、立体網状構造体601の強度も高くなる。また、連続線条が伸びやすくなり、製品安定性が高まる。   At this time, since the atmosphere is surrounded by the cover 650 as described above, the ambient temperature of the continuous filament is heated to a temperature higher than the ambient temperature. Thereby, mutual fusion | bonding of a continuous filament becomes favorable and intensity | strength also becomes high. A temperature higher than the melting point of the continuous filament is preferred. For example, a temperature range of 50 ° C to 500 ° C is preferable. In the conventional case, when the continuous filament made of polyethylene (PE), polyethylene terephthalate (PET), or nylon comes out of the base 634, the surface of the continuous filament is immediately cooled, and a film is formed on the surface of the continuous filament. It is possible to prevent the continuous filaments from fusing naturally, and the continuous filaments are less likely to fall naturally. Even in the case of continuous filaments made of PE and PET, the mutual fusion of the continuous filaments is good, and the strength of the three-dimensional network structure 601 is increased. In addition, the continuous filaments are easily elongated, and the product stability is increased.

溶融した熱可塑性樹脂の集合体の両面あるいは片面の表面部分は、シュータ620,621上に落下し、溶融した熱可塑性樹脂の集合体の内側へ移動し密な状態となるため、水中にそのまま落下した中央部分より空隙率が小さくなるわけである。当然ながら空隙率が低くなった表面部分は、空隙率が高い中央部分より交点の数が多くなり、引張り強度が著しく強くなる。また、空隙率が低い表面部分は空隙部の面積が小さくなるわけである。   Since both sides or one surface portion of the molten thermoplastic resin aggregate fall on the shooters 620 and 621 and move to the inside of the molten thermoplastic resin aggregate, it is dropped into the water as it is. Thus, the porosity is smaller than the central portion. Naturally, the surface portion where the porosity is low has more intersections than the central portion where the porosity is high, and the tensile strength is significantly increased. Moreover, the area of a void part becomes small in the surface part with a low porosity.

立体網状構造体601として機能するためには、全体の空隙率は、50%〜98%の空隙率の範囲が良好であるとの結果が得られた。つまり、密度が大きいと硬くなり、密度が少なくなると柔らかくなる。十分な機能を発揮するには、空隙率は少なくとも70%以上にすると良いという結果が得られた。つまり、空隙率が70%より小さいと、期待したほど向上しないことがある。この空隙率については、70%〜98%の範囲で適宜設計すると良い。   In order to function as the three-dimensional network 601, the result was that the overall porosity was good in the range of 50% to 98% porosity. That is, it becomes hard when the density is high, and soft when the density is low. In order to exhibit a sufficient function, it was found that the porosity should be at least 70% or more. That is, if the porosity is less than 70%, it may not improve as expected. About this porosity, it is good to design suitably in 70%-98% of range.

空隙率=100−{(B÷A)×100}である。Aは樹脂比重に立体網状構造体601の容積を掛けたもの、Bは立体網状構造体601の重さである。   Porosity = 100 − {(B ÷ A) × 100}. A is the resin specific gravity multiplied by the volume of the three-dimensional network structure 601, and B is the weight of the three-dimensional network structure 601.

ここで使用する熱可塑性樹脂としては、酢酸ビニール樹脂、或いはゴムを混合したポリエチレン樹脂を原料又は主原料とする。しかし、主原料にポリプロピレン等のポリマー或は複数のポリマーをブレンドしたものなど、通常の押出成形機で加工のできる樹脂であれば問題ない。
また、立体網状構造体601の硬さは嵩密度、合成樹脂の材質等を変更することで可能となる。嵩密度の制御は、押出機の樹脂糸押出速度制御、引き取り機の回転数制御等の制御によって実現できる。
As the thermoplastic resin used here, a vinyl acetate resin or a polyethylene resin mixed with rubber is used as a raw material or a main raw material. However, there is no problem as long as the main raw material is a resin that can be processed by a normal extrusion molding machine, such as a polymer such as polypropylene or a blend of a plurality of polymers.
Further, the hardness of the three-dimensional network structure 601 can be achieved by changing the bulk density, the material of the synthetic resin, and the like. The control of the bulk density can be realized by controlling the extrusion speed of the resin yarn of the extruder, the rotation speed of the take-up machine, and the like.

立体網状構造体601の幅1.0m、厚さ100mmとした場合、密度が変化することを確かめるため無端コンベアの速度を変化させることにより密度は変化することを確認した。
さらに押出機の吐出量の変化により密度が変化することを確かめた。
When the width of the three-dimensional network structure 601 was 1.0 m and the thickness was 100 mm, it was confirmed that the density was changed by changing the speed of the endless conveyor in order to confirm that the density was changed.
Furthermore, it was confirmed that the density changed due to the change of the discharge amount of the extruder.

スクリューの直径が75mmの単軸押出し機に、1.0m&times;180mmの面積のダイス33に、直径0.5mmとされた、ほぼ等間隔で約3500個の孔Hを有する口金634を取り付けた。ダイス633の下約120mmの位置に水位がある水槽618を設置し、幅1.2mの無端コンベア614,615を50mmの間隔をあけて1対、無端コンベア614,615の上部が40mm程度水面から出るようにほぼ垂直に設置した。   A die 634 having an area of 1.0 m &times; 180 mm and a die 634 having an area of 1.0 m &times; 180 mm and having a diameter of 0.5 mm and having about 3500 holes H at approximately equal intervals were attached to a single screw extruder having a screw diameter of 75 mm. A water tank 618 having a water level is installed at a position of about 120 mm below the die 633, and a pair of endless conveyors 614 and 615 having a width of 1.2 m are spaced at a distance of 50 mm, and the upper portions of the endless conveyors 614 and 615 are about 40 mm from the water surface. It was installed almost vertically so that it could come out.

この装置で、酢酸ビニル樹脂樹脂を熱を加えて可塑化しながら樹脂温度が240℃になるように、ダイス633の温度をコントロールして、1時間当たり120kgの押出し量で口金34から出た溶融樹脂の集合体の両面が無端コンベア614,615に落ちるようにそれらの間に押出した。この時の無端コンベア614,615の引取速度は0.7m/分とした。無端コンベア614,615に挟まれて下方へ移動した成形物は、水槽618の下部で向きを変え、押出し機とは反対の側から水面へと移動し、水槽618から出た時点で圧縮エアー又は真空ポンプで水分を吹き飛ばした。   With this apparatus, the temperature of the die 633 is controlled so that the resin temperature becomes 240 ° C. while plasticizing the vinyl acetate resin resin by applying heat, and the molten resin discharged from the die 34 at an extrusion amount of 120 kg per hour. Both sides of the assembly were extruded between the endless conveyors 614 and 615. The take-up speed of the endless conveyors 614 and 615 at this time was 0.7 m / min. The molded product that is sandwiched between the endless conveyors 614 and 615 and moves downward changes its direction at the lower part of the water tank 618, moves from the side opposite to the extruder to the water surface, and when it exits the water tank 618, Water was blown away with a vacuum pump.

図7(b)の密部708Aと疎部708Bを作成するには、無端コンベア614,615の引取速度を可変とし、緩い速度と早い速度の引き取りを繰り返す。   In order to create the dense portion 708A and the sparse portion 708B in FIG. 7B, the take-up speeds of the endless conveyors 614 and 615 are made variable, and the take-up at a slow speed and a high speed is repeated.

このようにして得られた立体網状構造体601は、幅10mm〜1250mm、厚さ10〜150mm(60〜200mmが好適である)、で、密度は、0.02g/cm3〜0.2g/cm3が得られた。適宜、消波材用のサイズに切断する。
また本具体例では、上述した以外に、立体網状構造体601としての用途ができ、PETボトルの回収率が高まると考えられる。これにより、PETボトルのリサイクルが大いに促進される。
The three-dimensional network structure 601 thus obtained has a width of 10 mm to 1250 mm, a thickness of 10 to 150 mm (preferably 60 to 200 mm), and a density of 0.02 g / cm 3 to 0.2 g / cm 3 was obtained. If necessary, cut to the size for the wave-dissipating material.
Further, in this specific example, in addition to the above, it can be used as the three-dimensional network structure 601 and the PET bottle recovery rate is considered to be increased. This greatly facilitates PET bottle recycling.

(立体網状構造体601の熱プレス)
上記のように製造された立体網状構造体601を下型700の上に置く。つぎに、複数の窪み701と、窪み701から突出する縦穴形成用突出部702と、窪み701の周囲に横面703と、横面703に形成される線状の連続突起704を備えるプレス型706で熱プレスする。縦穴形成用突出部702は横面703近くまで延び出している。これにより、貫通孔7,27,47を備える島状組織8,28,48と、板状体9,29,49、連続溝12,52を備える消波材6,26,46を形成する。板状体9,29,49は、機械プレス、熱プレス、加熱装置、超音波等によって形成する。PE,PETなどは熱プレスが好ましい。熱プレスの場合、波消材に穿孔することなく、貫通孔を形成できるので、強度を向上できる。
(Hot press of three-dimensional network structure 601)
The three-dimensional network structure 601 manufactured as described above is placed on the lower mold 700. Next, a press die 706 having a plurality of recesses 701, a vertical hole forming protrusion 702 protruding from the recess 701, a lateral surface 703 around the recess 701, and a linear continuous protrusion 704 formed on the lateral surface 703. Heat press with. The vertical hole forming protrusion 702 extends to the vicinity of the lateral surface 703. Thereby, the island-like structures 8, 28, 48 including the through holes 7, 27, 47 and the wave-dissipating materials 6, 26, 46 including the plate-like bodies 9, 29, 49 and the continuous grooves 12, 52 are formed. The plate-like bodies 9, 29, 49 are formed by a mechanical press, a hot press, a heating device, ultrasonic waves, or the like. PE, PET, etc. are preferably hot press. In the case of hot pressing, the through hole can be formed without drilling in the wave extinguishing material, so the strength can be improved.

なお、窪み701の上面に凸部720及び/又は側面に凸部730を形成した複数の窪みと、前記窪みから突出する縦穴形成用突出部と、前記窪みの周囲に横面とを備えるプレス型で、熱プレスすることにより、縦穴を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体601が圧縮又は溶融固化した板状体を備える消波材を形成し、前記島状組織の縦穴の底面板部を除去し、前記板状体の周縁をトリミングする、ことを特徴とする。   A press die comprising a plurality of depressions having a projection 720 formed on the upper surface of the depression 701 and / or a projection 730 on the side surface, a projection for forming a vertical hole protruding from the depression, and a lateral surface around the depression. Then, by hot pressing, an island-like structure having vertical holes and a plate-like body that is set to have a smaller thickness than the island-like structure and the three-dimensional network structure 601 is compressed or melted around the lower part of the island-like structure. The wave-dissipating material is formed, the bottom plate portion of the vertical hole of the island-like structure is removed, and the periphery of the plate-like body is trimmed.

次に島状組織の縦穴の底面板部を除去する。熱プレス前又は後の消波材6,26,46裏面に、必要に応じて、図6の点線で示すように、立体網状構造体601と同じ材質又は異なる材質の板材60を貼り合わせる。これにより次のトリミングを行うときの取り付け部分、トリミング部分の強度を高める。なお、板材60に代えてマジックテープ(登録商標)を接着し、容器4内面のマジックテープ(登録商標)と脱着自在な構造としてもよい。 Next, the bottom plate portion of the vertical hole of the island structure is removed. A plate material 60 made of the same material as or different from that of the three-dimensional network structure 601 is bonded to the back surface of the wave-dissipating material 6, 26, 46 before or after hot pressing, as necessary, as indicated by a dotted line in FIG. This increases the strength of the attachment portion and the trimming portion when the next trimming is performed. In addition, it may replace with the board | plate material 60, and it is good also as a structure which can adhere | attach and remove the Velcro (registered trademark) on the inner surface of the container 4 by attaching Velcro (registered trademark).

次に、板状体9,29,49から突出しているバリを除去するため、カッターなどにより、その周縁をトリミングする。   Next, in order to remove the burrs protruding from the plate-like bodies 9, 29, 49, the periphery thereof is trimmed with a cutter or the like.

本発明は、ガソリンタンク等の燃料タンクの消波材、消波材を備える燃料タンクに利用できる。   INDUSTRIAL APPLICABILITY The present invention can be used for a fuel tank equipped with a wave-dissipating material for a fuel tank such as a gasoline tank or a wave-dissipating material.

実施形態1の燃料タンク1及び燃料タンク1内に配置される消波材6の平面図である。FIG. 3 is a plan view of the fuel tank 1 and the wave-dissipating material 6 disposed in the fuel tank 1 according to the first embodiment. 実施形態1の燃料タンク及び燃料タンク1内に消波材6が配置される様子を示す模式図である。FIG. 2 is a schematic diagram illustrating a fuel tank according to Embodiment 1 and a state in which a wave-dissipating material 6 is disposed in the fuel tank 1. (a)〜(c)は実施形態1のファスナの締結形態を示す断面図である。(A)-(c) is sectional drawing which shows the fastening form of the fastener of Embodiment 1. FIG. 実施形態2の燃料タンク21の消波材26の取付状態を示す断面図である。It is sectional drawing which shows the attachment state of the wave-absorbing material 26 of the fuel tank 21 of Embodiment 2. (a)(b)は実施形態2の燃料タンク21及び燃料タンク21内に消波材26が配置される様子を示す模式図である。である。(A) (b) is a schematic diagram which shows a mode that the quenching material 26 is arrange | positioned in the fuel tank 21 and the fuel tank 21 of Embodiment 2. FIG. It is. (a)は第3実施形態の消波材46の平面図、(b)は同正面図である。(A) is a top view of the wave-dissipating material 46 of 3rd Embodiment, (b) is the same front view. 消波材の材料となる立体網状構造体601の斜視図である。It is a perspective view of the three-dimensional network structure 601 used as the material of a wave-dissipating material. 立体網状構造体製造装置の斜視図である。It is a perspective view of a three-dimensional network-structure manufacturing apparatus. 立体網状構造体製造装置の動作状況を示す説明図である。It is explanatory drawing which shows the operation | movement condition of a three-dimensional network-structure manufacturing apparatus. (a),(b)は、同立体網状構造体製造装置の無端コンベアの側面図及び正面図である。(A), (b) is the side view and front view of an endless conveyor of the same three-dimensional network-structure manufacturing apparatus. 立体網状構造体製造装置のカバーとプレートヒータの斜視図である。It is a perspective view of the cover and plate heater of a solid network structure manufacturing apparatus. 熱プレスの断面図である。It is sectional drawing of a hot press.

符号の説明Explanation of symbols

1,21・・・燃料タンク 2,22・・・燃料注入口 3,23・・・燃料排出口
4,24・・・容器 5,25・・・キャップ 6,26,46・・・消波材
7,27,47・・・貫通孔 8,28,48・・・島状組織
9,29,49・・・板状体 10・・・第1ファスナ 11・・・第2ファスナ
12,42・・・連続溝 30・・・支柱 31・・・弾性拘束片
42・・・連続溝 55・・・凹部 57・・・凹部 601・・・立体網状構造体
650・・・カバー 652,654・・・孔 656・・・プレートヒータ
700・・・下型 701・・・窪み 702・・・縦穴形成用突出部
703・・・横面 704・・・連続突起 706・・・プレス型
720・・・凸部 730・・・凹部
DESCRIPTION OF SYMBOLS 1,21 ... Fuel tank 2,22 ... Fuel injection port 3,23 ... Fuel discharge port 4,24 ... Vessel 5,25 ... Cap 6,26,46 ... Wave extinction Material 7, 27, 47 ... Through-hole 8, 28, 48 ... Island-like structure 9, 29, 49 ... Plate-like body 10 ... 1st fastener 11 ... 2nd fastener 12, 42 ... continuous groove 30 ... support 31 ... elastic restraint piece 42 ... continuous groove 55 ... concave 57 ... concave 601 ... three-dimensional network structure 650 ... cover 652,654 ··· hole 656 ··· plate heater 700 · · · lower die 701 · · · depression 702 · · · vertical hole forming projection 703 ··· horizontal surface 704 · · · continuous projection 706 · · · press die 720 ···・ Convex part 730 ... concave part

Claims (11)

熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、
該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、を備え、
前記島状組織が消波材となることを特徴とする燃料タンク。
An island-like structure comprising a three-dimensional network structure in which a plurality of continuous filaments of a thermoplastic resin are three-dimensionally randomly entangled and partially welded, and having a through-hole penetrating in the vertical direction;
A plate-like body that is set to have a thickness smaller than that of the island-shaped structure, is integrally connected to the periphery of the island-shaped structure so as to surround the lower side of the island-shaped structure, and extends laterally;
A fuel tank, wherein the island-like structure serves as a wave-dissipating material.
熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、
該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、
燃料燃料注入口及び燃料排出口を備える金属製又はプラスチック製の容器に内設し内側に突出するように壁面に固定される第1ファスナと、
から構成され、
前記第1ファスナと第2ファスナとが締結することにより前記島状組織を挟んで固定するように構成し、
前記島状組織が消波材となることを特徴とする燃料タンク。
An island-like structure comprising a three-dimensional network structure in which a plurality of continuous filaments of a thermoplastic resin are three-dimensionally randomly entangled and partially welded, and having a through-hole penetrating in the vertical direction;
A plate-like body that is set to have a thickness smaller than that of the island-like structure, is integrally connected to the periphery of the island-like structure so as to surround the lower part of the island-like structure, and extends laterally.
A first fastener fixed to a wall so as to protrude inwardly in a metal or plastic container having a fuel fuel inlet and a fuel outlet;
Consisting of
The first fastener and the second fastener are fastened and configured to sandwich and fix the island structure,
A fuel tank, wherein the island-like structure serves as a wave-dissipating material.
熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、
該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、
燃料燃料注入口及び燃料排出口を備える金属製又はプラスチック製の容器に内設し内側に突出するように壁面に固定される支柱と、該支柱の先端部に形成される弾性拘束片と、を備えるファスナーと、
から構成され、
前記ファスナーが前記貫通孔の下方から貫通した後に前記弾性拘束片が拡大し前記島状組織に係止するように構成し、
前記島状組織が消波材となることを特徴とする燃料タンク。
An island-like structure comprising a three-dimensional network structure in which a plurality of continuous filaments of a thermoplastic resin are three-dimensionally randomly entangled and partially welded, and having a through-hole penetrating in the vertical direction;
A plate-like body that is set to have a thickness smaller than that of the island-like structure, is integrally connected to the periphery of the island-like structure so as to surround the lower part of the island-like structure, and extends laterally.
A column that is installed in a metal or plastic container having a fuel fuel inlet and a fuel outlet and is fixed to the wall so as to protrude inward, and an elastic restraint piece formed at the tip of the column. A fastener to be provided;
Consisting of
After the fastener penetrates from below the through hole, the elastic restraint piece is configured to expand and lock to the island structure,
A fuel tank, wherein the island-like structure serves as a wave-dissipating material.
熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体を、複数の窪みと、前記窪みから突出する縦穴形成用突出部と、前記窪みの周囲に横面とを備えるプレス型で熱プレスすることにより、縦穴を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体が圧縮又は溶融固化した板状体を備える消波材を形成し、
前記島状組織の縦穴の底面板部を除去し、
前記板状体の周縁をトリミングする、
ことを特徴とする燃料タンク消波材の製造方法。
A three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are three-dimensionally randomly entangled and partially welded, a plurality of depressions, a protrusion for forming a vertical hole projecting from the depression, and the depression By heat-pressing with a press die having a lateral surface around it, an island-like structure having vertical holes and a thickness smaller than that of the island-like structure are set, and the three-dimensional network structure is compressed around the lower part of the island-like structure. Forming a wave-dissipating material comprising a melted and solidified plate-like body,
Removing the bottom plate portion of the vertical hole of the island-like structure,
Trimming the periphery of the plate-like body;
A method for manufacturing a fuel tank wave-absorbing material.
熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着され、押出し方向に粗部と密部とが交互に形成された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、
該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、を備え、
前記島状組織が消波材となることを特徴とする燃料タンク。
It consists of a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are randomly entangled three-dimensionally and partly welded, with coarse and dense parts alternately formed in the extrusion direction, and penetrates in the vertical direction. An island-like structure with through-holes,
A plate-like body that is set to have a thickness smaller than that of the island-shaped structure, is integrally connected to the periphery of the island-shaped structure so as to surround the lower side of the island-shaped structure, and extends laterally;
A fuel tank, wherein the island-like structure serves as a wave-dissipating material.
熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着され、押出し方向に疎部と密部とを交互に形成した立体網状構造体を、複数の窪みと、前記窪みから突出する縦穴形成用突出部と、前記窪みの周囲に横面とを備えるプレス型で熱プレスすることにより、縦穴を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体が圧縮又は溶融固化した板状体を備える消波材を形成し、
前記島状組織の縦穴の底面板部を除去し、
前記板状体の周縁をトリミングする、
ことを特徴とする燃料タンク消波材の製造方法。
A three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are three-dimensionally randomly entangled and partially welded, and a sparse part and a dense part are alternately formed in the extrusion direction, a plurality of depressions, By heat-pressing with a press die having a vertical hole forming protrusion protruding from the depression and a lateral surface around the depression, an island-like structure having a vertical hole and a thickness smaller than the island-like structure are set, Form a wave-dissipating material comprising a plate-like body in which a three-dimensional network structure is compressed or melted and solidified around the lower part of the island structure,
Removing the bottom plate portion of the vertical hole of the island-like structure,
Trimming the periphery of the plate-like body;
A method for manufacturing a fuel tank wave-absorbing material.
前記熱プレス後の波消材の裏面に前記立体網状構造体と同じ材質又は異なる材質の板材を貼り合わせる工程を、前記トリミングする工程よりも前の工程として付加する請求項4又は6燃料タンク消波材の製造方法。   7. The fuel tank eraser according to claim 4, wherein a step of bonding a plate material made of the same material as or different from the three-dimensional network structure to the back surface of the wave-dissipating material after the hot pressing is added as a step before the trimming step. Wave material manufacturing method. 熱可塑性樹脂の複数の連続線条を口金の孔から自重で降下させる際に該連続線条の雰囲気温度を周囲の雰囲気温度よりも高い温度に加熱し、該連続線条を立体的にランダムに絡まりあわせて部分的に溶着させることにより立体網状構造体を形成し、
前記立体網状構造体を、複数の窪みと、前記窪みの周囲に形成した横面と、該横面に形成される線状の連続突起とを備えるプレス型で熱プレスすることにより、島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体が圧縮又は溶融固化した板状体を備える消波材を形成し、
前記板状体の周縁をトリミングする、
ことを特徴とする燃料タンク消波材の製造方法。
When dropping a plurality of continuous filaments of thermoplastic resin from the hole of the die by its own weight, the ambient temperature of the continuous filaments is heated to a temperature higher than the ambient atmosphere temperature, and the continuous filaments are three-dimensionally randomly selected. Form a three-dimensional network structure by tangling and partially welding,
By subjecting the three-dimensional network structure to a press mold comprising a plurality of depressions, a lateral surface formed around the depressions, and linear continuous protrusions formed on the lateral surface, an island structure is obtained. And forming a wave-dissipating material comprising a plate-like body in which a three-dimensional network structure is compressed or melted and solidified around the lower part of the island-like structure, the thickness being set smaller than the island-like structure,
Trimming the periphery of the plate-like body;
A method for manufacturing a fuel tank wave-absorbing material.
熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備えるとともに上面に凹部及び/又は側面に凹部を形成した島状組織と、
該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、を備え、
前記島状組織が消波材となることを特徴とする燃料タンク。
It consists of a three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are randomly entangled three-dimensionally, and has a through hole penetrating in the vertical direction, and has a recess on the top surface and / or a recess on the side surface. The island-like structure that formed
A plate-like body that is set to have a thickness smaller than that of the island-shaped structure, is integrally connected to the periphery of the island-shaped structure so as to surround the lower side of the island-shaped structure, and extends laterally;
A fuel tank, wherein the island-like structure serves as a wave-dissipating material.
熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体を、上面に凸部及び/又は側面に凸部を形成した複数の窪みと、前記窪みから突出する縦穴形成用突出部と、前記窪みの周囲に横面とを備えるプレス型で、熱プレスすることにより、縦穴を備える島状組織と、該島状組織より厚みが少なく設定され、該島状組織の下部周囲に立体網状構造体が圧縮又は溶融固化した板状体を備える消波材を形成し、
前記島状組織の縦穴の底面板部を除去し、
前記板状体の周縁をトリミングする、
ことを特徴とする燃料タンク消波材の製造方法。
A three-dimensional network structure in which a plurality of continuous filaments of thermoplastic resin are randomly entangled three-dimensionally and partially welded, and a plurality of depressions having convex portions on the upper surface and / or convex portions on the side surfaces, By a hot press with a vertical die forming protrusion that protrudes from the depression and a lateral surface around the depression, an island-like structure having a vertical hole and a thickness less than the island-like structure are set, Forming a wave-dissipating material comprising a plate-like body in which a three-dimensional network structure is compressed or melted and solidified around the lower part of the island-like structure;
Removing the bottom plate portion of the vertical hole of the island-like structure,
Trimming the periphery of the plate-like body;
A method for manufacturing a fuel tank wave-absorbing material.
熱可塑性樹脂の複数の連続線条が立体的にランダムに絡まりあって部分的に溶着された立体網状構造体からなり、縦方向に貫通する貫通孔を備える島状組織と、
該島状組織より厚みが少なく設定され、該島状組織の下方を囲むようにその周縁に一体に接続し横方向に延び出す板状体と、を備え、
前記島状組織が消波材となり、
該消波材の裏面と、燃料燃料注入口及び燃料排出口を備える金属製又はプラスチック製の容器の内面とをマジックテープ(登録商標)で着脱自在に構成することを特徴とする燃料タンク。
An island-like structure comprising a three-dimensional network structure in which a plurality of continuous filaments of a thermoplastic resin are three-dimensionally randomly entangled and partially welded, and having a through-hole penetrating in the vertical direction;
A plate-like body that is set to have a thickness smaller than that of the island-shaped structure, is integrally connected to the periphery of the island-shaped structure so as to surround the lower side of the island-shaped structure, and extends laterally;
The island structure becomes a wave-dissipating material,
A fuel tank, wherein a back surface of the wave-dissipating material and an inner surface of a metal or plastic container provided with a fuel fuel inlet and a fuel outlet are detachable with Velcro (registered trademark).
JP2005095682A 2005-03-29 2005-03-29 Fuel tank equipped with breakwater material, fuel tank breakwater material, and manufacturing method for them Pending JP2006273131A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016207476A1 (en) * 2016-04-29 2017-11-02 Kautex Textron Gmbh & Co. Kg A method for manufacturing a liquid container, liquid container for a motor vehicle and structure for reducing sloshing noise
JP2019060063A (en) * 2017-09-25 2019-04-18 リッチコミュニケーションズ株式会社 Three-dimensional network structure
JP2021021177A (en) * 2019-07-29 2021-02-18 リッチコミュニケーションズ株式会社 Apparatus and method for producing three-dimensional network structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01130940U (en) * 1988-03-02 1989-09-06
JP2003049730A (en) * 2001-08-02 2003-02-21 Yachiyo Industry Co Ltd Noise eliminator for fuel tank
JP2003268668A (en) * 2002-03-07 2003-09-25 Shiienji:Kk Three-dimensional net-like structure and method for producing three-dimensional net-like structure
JP2004322996A (en) * 2003-04-11 2004-11-18 Shiienji:Kk Fuel tank equipped with breakwater material, fuel tank breakwater material, and manufacturing method for them
JP2005170084A (en) * 2003-12-08 2005-06-30 Piolax Inc Noise eliminator for fuel tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01130940U (en) * 1988-03-02 1989-09-06
JP2003049730A (en) * 2001-08-02 2003-02-21 Yachiyo Industry Co Ltd Noise eliminator for fuel tank
JP2003268668A (en) * 2002-03-07 2003-09-25 Shiienji:Kk Three-dimensional net-like structure and method for producing three-dimensional net-like structure
JP2004322996A (en) * 2003-04-11 2004-11-18 Shiienji:Kk Fuel tank equipped with breakwater material, fuel tank breakwater material, and manufacturing method for them
JP2005170084A (en) * 2003-12-08 2005-06-30 Piolax Inc Noise eliminator for fuel tank

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016207476A1 (en) * 2016-04-29 2017-11-02 Kautex Textron Gmbh & Co. Kg A method for manufacturing a liquid container, liquid container for a motor vehicle and structure for reducing sloshing noise
US11325464B2 (en) 2016-04-29 2022-05-10 Kautex Textron Gmbh & Co., Kg Method for producing a liquid container, liquid container for a motor vehicle, and structure for reducing sloshing sounds
US11872880B2 (en) 2016-04-29 2024-01-16 Kautex Textron Gmbh & Co. Kg Method for producing a liquid container, liquid container for a motor vehicle, and structure for reducing sloshing sounds
JP2019060063A (en) * 2017-09-25 2019-04-18 リッチコミュニケーションズ株式会社 Three-dimensional network structure
JP2021021177A (en) * 2019-07-29 2021-02-18 リッチコミュニケーションズ株式会社 Apparatus and method for producing three-dimensional network structure

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